ASTM_D_5632_-_D_5632M_-_12e1.pdf

Designation:D5632/D5632M121Standard Specification forHalon 1301,Bromotrifluoromethane(CF3Br)1This standard is issued under the fixed designation D5632/D5632M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1NOTEDesignation was corrected editorially in October 2013.1.Scope1.1 This specification covers the requirements for Halon1301 as a fire-fighting medium.1.2 This specification does not address the fire-fightingequipment or hardware that employs Halon 1301 or theconditions of employing such equipment(for example,handhelds,fixed installations,etc.).1.3 This specification does not address the storage ortransportation of Halon 1301.Storage,handling,and transpor-tation issues are addressed in Practice D5631.1.4 The values stated in both inch-pound and SI units are tobe regarded separately as the standard.The values given inparentheses are mathematical conversions that are provided forinformation only.1.5 The following safety hazards caveat pertains only to thetest methods portion,Section 6,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.Specific hazards statements are given in 4.5.2.Referenced Documents2.1 ASTM Standards:2D5631 Practice for Handling,Transportation,and Storage ofHalon 1301,Bromotrifluoromethane(CF3Br)2.2 ISO Standards:3ISO 3427 Gaseous Halogenated Hydrocarbons(LiquefiedGases)Taking of a Sample2.3 AHRI Standards:42008 Appendix Cfor Analytical Procedures for AHRIStandard 700-20062.4 U.S.Government Standards:5CFR Title 49,Part 172.101 Tables of Hazardous Materialsand Special ProvisionsCFR Title 49,Part 172 Subpart D Marking Requirements ofPackaging for Transportation3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 Halon 1301 The halogenated hydrocarbon com-pound Bromotrifluoromethane used as a fire extinguishingmedium.3.1.1.1 DiscussionThe halon terminology system pro-vides a convenient means to reference halogenated hydrocar-bon fire extinguishants.Halogenated hydrocarbons are acyclicsaturated hydrocarbons in which one or more of the hydrogenatoms have been replaced by atoms from the halogen series(that is,fluorine,chlorine,bromine,and iodine).By definition,the first digit of the halon numbering system represents thenumber of carbon atoms in the compound molecule;the seconddigit,the number of fluorine atoms;the third digit,the numberof chlorine atoms;the fourth digit,the number of bromineatoms;and the fifth digit,the number of iodine atoms.Trailingzeros are not expressed.Unaccounted for valence requirementsare assumed to be hydrogen atoms.number of hydrogen atoms5(1)number of carbon atoms32!12!2sum of halogen atoms!#For example,(2)bromotrifluoromethane 2 CF3Br2 Halon 13013.1.2 non-condensable gases non-condensable gasesconsist primarily of air(nitrogen,oxygen)accumulated in the1This specification is under the jurisdiction of ASTM Committee D26 onHalogenated Organic Solvents and Fire Extinguishing Agents,and is the directresponsibility of Subcommittee D26.09 on Fire Extinguishing Agents.Current edition approved March 1,2012.Published April 2012.Originallyapproved in 1994.Last previous edition approved in 2008 as D5632-08.DOI:10.1520/D5632-12E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute,11 W.42nd St.,13thFloor,New York,NY 10036.4Available from Air-Conditioning,Heating,and Refrigeration Institute,2111Wilson Blvd,Suite 500,Arlington,VA 22201.5Available from Superintendent of Documents,U.S.Government PrintingOffice,Washington,DC 20036.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 vapor phase of a liquefied compressed gas where the solubilityof air in the liquid phase is extremely low and air is notsignificant as a liquid phase contaminant.Non-condensablegases are in some instances termed non-absorbable gases.4.Material Requirements4.1 Type IMixtures of Halon 1301 and nitrogen:4.1.1 The nitrogen(N2)partial pressure shall be such thatthe safe working pressure of the receiving vessel is notexceeded.To prevent excessive pressure,the fill density of theHalon 1301 within a container should not exceed that neededto achieve complete filling of the container at the maximumenvisaged storage temperature.For example,for